expander扩张: expand; enlarge; spread器: implement; utensil; ware伸: stretch; extend幅: width of cloth扩充: expand; augment; enlarge; ex ...下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:扩张器，伸幅器，扩充器，即可在微信中查询翻译
